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This page lists the locations where AI Applications
is available.
AI Applications supports data residency at-rest when using
multi-region APIs as described below.
If you don't have compliance or regulatory reasons to locate your data in the
US or EU multi-region, Google recommends that you choose the global location. This
is because the global location provides better end-user response times and the
full feature set. See Limitations for multi-regions.
Multi-regions
The following table lists the multi-regions where
AI Applications is available.
Multi-region description
Multi-region name
API availability in the European Union
eu
API availability in the United States
us
Specify a multi-region for your data store
To confine your at-rest data to the US or EU multi-region, follow
these steps:
If you create the data store through the Google Cloud console, then choose us
(multiple regions in the United States) or eu (multiple regions in the
European Union) when you pick your app location.
Review the limitations associated with using a specific
multi-region.
Limitations for multi-regions
The following features of AI Applications are supported globally but
are not supported for the US and EU multi-regions or are supported in the
multi-regions in Preview:
Autocomplete: Although autocomplete is available in the US and EU
multi-regions, the tail match suggestions and the advanced document data
mode features cannot be used in multi-regions. For general information about
autocomplete, see Configure
autocomplete.
Basic website search: For website data stores, you must use advanced website indexing.
Basic website search is not available. For general information about
Advanced website indexing, see Advanced website
indexing.
User events: User events don't affect search results.
Dynamic facets: Even if a field is set to Dynamic Facetable,
AI Applications does not use that field as a dynamic facet.
Analytics: Search analytics are available in Public preview in US and EU
multi-regions. Viewing media recommendations analytics is global only. For
general information about analytics, see View
analytics.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-25 UTC."],[[["\u003cp\u003eVertex AI Search is available in multi-regions, specifically the US and EU, for data residency at-rest.\u003c/p\u003e\n"],["\u003cp\u003eGoogle recommends using the \u003ccode\u003eglobal\u003c/code\u003e location for Vertex AI Search unless compliance or regulatory reasons necessitate multi-region use, as \u003ccode\u003eglobal\u003c/code\u003e offers better end-user response times and full feature access.\u003c/p\u003e\n"],["\u003cp\u003eTo use multi-regions, you must choose 'us' or 'eu' when creating a data store and adjust API calls to reflect \u003ccode\u003eus-discoveryengine\u003c/code\u003e or \u003ccode\u003eeu-discoveryengine\u003c/code\u003e instead of \u003ccode\u003ediscoveryengine\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eSeveral Vertex AI Search features, including basic website search, user events, and media data stores, are not supported in the US and EU multi-regions.\u003c/p\u003e\n"],["\u003cp\u003eUsing multi-region APIs might not produce the same results when compared with the global API.\u003c/p\u003e\n"]]],[],null,["# AI Applications locations\n\nThis page lists the locations where AI Applications\nis available.\n\nAI Applications supports data residency at-rest when using\nmulti-region APIs as described below.\n\nIf you don't have compliance or regulatory reasons to locate your data in the\nUS or EU multi-region, Google recommends that you choose the `global` location. This\nis because the global location provides better end-user response times and the\nfull feature set. See [Limitations for multi-regions](#limitations).\n\nMulti-regions\n-------------\n\nThe following table lists the multi-regions where\nAI Applications is available.\n\n| **Important:** All machine learning (ML) processes, such as training, prediction, and tuning a model, occur within the US when requests are made to regionally-available APIs in the US, or within the EU when requests are made to regionally-available APIs in Europe.\n\nSpecify a multi-region for your data store\n------------------------------------------\n\nTo confine your at-rest data to the US or EU multi-region, follow\nthese steps:\n\n1. If you create the data store through the Google Cloud console, then choose **us\n (multiple regions in the United States)** or **eu (multiple regions in the\n European Union)** when you pick your app location.\n\n For more information, see [Create a search\n app](/generative-ai-app-builder/docs/create-engine-es).\n2. For API calls, replace `discoveryengine` with `eu-discoveryengine` or\n `us-discoveryengine` and replace `global` with `eu` or `us`.\n\n For example, the path for the calls is: \n\n ```\n https://eu-discoveryengine.googleapis.com/v1/projects/PROJECT_ID/locations/eu/…\n ```\n\n or \n\n ```\n https://us-discoveryengine.googleapis.com/v1/projects/PROJECT_ID/locations/us/…\n ```\n\n instead of \n\n ```\n https://discoveryengine.googleapis.com/v1/projects/PROJECT_ID/locations/global/…\n ```\n3. Review the [limitations](#limitations) associated with using a specific\n multi-region.\n\nLimitations for multi-regions\n-----------------------------\n\nThe following features of AI Applications are supported globally but\nare not supported for the US and EU multi-regions or are supported in the\nmulti-regions in Preview:\n\n- **Autocomplete** : Although autocomplete is available in the US and EU\n multi-regions, the tail match suggestions and the advanced document data\n mode features cannot be used in multi-regions. For general information about\n autocomplete, see [Configure\n autocomplete](/generative-ai-app-builder/docs/configure-autocomplete).\n\n- **Basic website search:** For website data stores, you must use advanced website indexing.\n Basic website search is not available. For general information about\n Advanced website indexing, see [Advanced website\n indexing](/generative-ai-app-builder/docs/about-advanced-features#advanced-website-indexing).\n\n- **User events:** User events don't affect search results.\n\n- **Dynamic facets:** Even if a field is set to **Dynamic Facetable**,\n AI Applications does not use that field as a dynamic facet.\n\n- **Analytics:** Search analytics are available in Public preview in US and EU\n multi-regions. Viewing media recommendations analytics is global only. For\n general information about analytics, see [View\n analytics](/generative-ai-app-builder/docs/view-analytics).\n\n- **Media:** Media data stores are global only. You can't create media data\n stores for the US or EU multi-regions. For general information about media\n data stores, see [Create media apps and data\n stores](/generative-ai-app-builder/docs/create-app-media)\n and [About media documents and data\n stores](/generative-ai-app-builder/docs/media-documents).\n\nUsing multi-region APIs might not produce identical results to the global API."]]
